package com.ny.whw;

     public class BankPay  implements Pay{
         double m = 100;
         @Override
         public void pay (double money ){
             if (m<money ) {
                 System.out.println("你的余额不足");
             }
                 else{
                     System.out.println("你消费了"+money);
                     m =m -money ;
                     System.out.println("你余额为"+m);
                 }

             }
         }


